calamistrum

noun

cal·​a·​mis·​trum

ˌkaləˈmistrəm

plural calamistra

-rə

: a spinose comb on the hind metatarsi of a cribellate spider that aids in organizing silk spun from the cribellum

Word History

Etymology

Latin, curling iron, irregular from Greek kalamis, from kalamos reed

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